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Finding the Fourth Proportional to 27,322.66, 40,969.88 and 12,518.89

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Solution

The fourth proportional to 27,322.66, 40,969.88 and 12,518.89 is: 18,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,322.66 : 40,969.88 = 12,518.89 : x
  2. Step 2: Convert to fraction form
    27,322.66/40,969.88 = 12,518.89/x
  3. Step 3: Cross multiply
    27,322.66x = 40,969.88 × 12,518.89
  4. Step 4: Simplify right side
    27,322.66x = 512,897,421.03
  5. Step 5: Solve for x
    x = 512,897,421.03/27,322.66
  6. Step 6: Final answer
    x = 18,771.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.